Johannesburg - Czech businessman Radovan Krejcir will be moved from prison to a medical facility, the High Court in Johannesburg ruled on Monday.
"I find the said expert [Krejcir's doctor] is credible. He has provided more than enough evidence," said Judge Ramarumo Monama.
"I therefore find him a reliable witness."
Krejcir's lawyers wanted him moved from prison to hospital amid claims that he was assaulted and tasered following his arrest on Friday.
Monama heard testimony from Krejcir's doctor, a state doctor, and a police official on Sunday night.
Krejcir's doctor, who cannot be named for security reasons, recommended that Krejcir be hospitalised.
He said Krejcir could face renal failure if he did not get medical attention. The doctor said the injuries suffered by Krejcir were consistent with those of someone who been assaulted.
The State also called its own doctor who claimed he had observed injuries on Krejcir wrists, which could have been caused by the handcuffs.
Monama said the approach of the State in this case was "unfortunate".
"They concentrated mostly on the peripheral issues," said the judge.
"The issue in this application is not to determine whether the applicant was assaulted or not."
He said that would be up to the investigators. The issue was whether he required urgent medical attention.
Krejcir had the right, according to the Constitution, to human dignity and medical treatment.
"I find the applicant has a proper case," said Monama.
Afterwards, Krejcir's attorney Ulrich Roux said his client was in need of serious medical attention.
"We will see to it that the order is implemented immediately."
The respondents [Minister of Police] and others were ordered to pay the costs of the application.
Earlier, the Independent Police Investigative Directorate said it was investigating Krejcir's assault claims. - Sapa
* This article was edited at 1:18pm on November 25, 2013.